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Equation (expression) parser with precedence?
...ample code that you can just run bison on and get your desired C code that demonstrates this four function calculator:
http://www.gnu.org/software/bison/manual/html_node/Infix-Calc.html
Look at the generated code, and see that this is not as easy as it sounds. Also, the advantages of using a tool ...
Fixed width buttons with Bootstrap
...rently if I have 2 buttons, "Save" and "Download", the button size changes based on content.
12 Answers
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Convert integer to hexadecimal and back again
...the hex equivalent. HEX is not a terrible solution for this problem, but a base64 of the four bytes in the int would be even shorter (and you could trim the padding)
– James Hart
Aug 16 '11 at 21:08
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Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
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SlaumaSlauma
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Detect application heap size in Android
... to 32:
maxMemory: 33554432
getMemoryClass: 32
With VM Heap Size set to 64:
maxMemory: 67108864
getMemoryClass: 32
In addition to the above, I tested on a Novo7 Paladin tablet running Ice Cream Sandwich.
This was essentially a stock version of ICS, except that I've rooted the tablet through...
Renaming columns in pandas
...eviated representation:code <class 'pandas.core.frame.DataFrame'> Int64Index: 1000 entries, 0 to 999 Data columns: BodyMarkdown 1000 non-null code works, but when i do dataframe.head() the old names for the columns re-appear.
– darKoram
Sep 10 '12...
Comparison of Lucene Analyzers
...fic analyzers/tokenizers see its Java Docs.
Stemmers are used to get the base of a word in question. It heavily depends on the language used. For example, for previous phrase in English there will be something like ["i", "be", "veri", "happi"] produced, and for French "Je suis très heureux" some ...
Add and Remove Views in Android Dynamically?
...n you write an XML layout, it is just parsed in Java and views are created based on it during the run-time!
– Davide Cannizzo
Jan 27 '18 at 17:02
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What is the MySQL VARCHAR max size?
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As per the online docs, there is a 64K row limit and you can work out the row size by using:
row length = 1
+ (sum of column lengths)
+ (number of NULL columns + delete_flag + 7)/8
+ (number of variable-length columns)
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dropping infinite values from dataframes in pandas?
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Use (fast and simple):
df = df[np.isfinite(df).all(1)]
This answer is based on DougR's answer in an other question.
Here an example code:
import pandas as pd
import numpy as np
df=pd.DataFrame([1,2,3,np.nan,4,np.inf,5,-np.inf,6])
print('Input:\n',df,sep='')
df = df[np.isfinite(df).all(1)]
prin...